document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=84921>Question 84921</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0131492594/algebrahomeworkh></A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> I have tried to make sense of this one and it bugs me and is even harder with no graphing calculator.:-(\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Page 795: Problem # 56 solve the inequality and graph the solution set on a real number line.\r<BR>\n" );
document.write( "\n" );
document.write( "A model rocket is launched from ground level. The function:<BR>\n" );
document.write( "S(t) = -16t^2 +48t\r<BR>\n" );
document.write( "\n" );
document.write( "Models the rocket’s height above the ground, s(t) in feet, t seconds after it was launched. During which period will the rocket’s height exceed 32 feet?<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #61195 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=61195\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The function:<BR>\n" );
document.write( "S(t) = -16t^2 +48t <BR>\n" );
document.write( "Models the rocket’s height above the ground, s(t) in feet, t seconds after it was launched. During which period will the rocket’s height exceed 32 feet?<BR>\n" );
document.write( "------------<BR>\n" );
document.write( "s(t) is the height of the rocket above the ground.<BR>\n" );
document.write( "Let s(t) = 32 feet and solve for time = t.<BR>\n" );
document.write( "--------<BR>\n" );
document.write( "EQUATION:<BR>\n" );
document.write( "-16t^2+48t=32<BR>\n" );
document.write( "t^2-3t+2=0<BR>\n" );
document.write( "(t-2)(t-1)=0<BR>\n" );
document.write( "t=1 or t=2<BR>\n" );
document.write( "the rocket is at or above 32 ft. between t=1 and t=2 seconds<BR>\n" );
document.write( "1 < t <2<BR>\n" );
document.write( "-----------<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );